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SFC service data forwarding method and SFC network system

A forwarding method and technology for business data, applied in data exchange networks, digital transmission systems, transmission systems, etc., can solve the problems of lack of priority guarantee mechanism and inability to provide priority for high-quality demand services, so as to increase system overhead and improve operations. Ability to achieve simple effects

Pending Publication Date: 2019-12-10
CHINA TELECOM CORP LTD
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Problems solved by technology

However, the existing SDN-based SFC technology has the following problems: After NSH encapsulation of the original message in SFC, the header of the original message (including the DSCP field) is encapsulated into the inner payload, and the intermediate node directly based on For forwarding by the tunnel header, it will not read the header content of the original packet that has been encapsulated into the inner payload. Therefore, it is no longer possible to provide priority through the DSCP field in IP, resulting in a lack of high-quality services. priority protection mechanism

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  • SFC service data forwarding method and SFC network system

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[0030] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0031] The "first", "second" and so on in the following are only used to describe the difference, and have no other special meanings.

[0032] figure 1 It is a schematic flow diagram of an embodiment of the SFC service data forwarding method according to the p...

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Abstract

The invention provides an SFC service data forwarding method and an SFC network system, and the method comprises the steps: enabling a classifier to receive a service message, and generating an SFC message based on the service message; enabling the classifier to generate a network service header NSH according to the forwarding path information of the service message, and fill the ToS field in theNSH with quality of service QoS information corresponding to the service message; and enabling the classifier to encapsulate the NSH in the SFC message, and forward the SFC message based on the QoS information carried by the ToS field. According to the method and the SFC network system provided by the invention, a QoS mechanism can be provided for the SFC network, so that the service flow of the service chain is forwarded according to the priority, the service quality of high-grade users is ensured, the operation capability is improved, and the system overhead is not increased.

Description

technical field [0001] The invention relates to the technical field of SDN, in particular to a SFC service data forwarding method and an SFC network system. Background technique [0002] SFC (Service Function Chaining, Service Function Chaining) technology based on SDN (Software Defined Network, Software Defined Network) can realize network traffic in accordance with the established order required by business logic. Compared with traditional network services, it has the advantages of simple deployment and physical network Topology decoupling, simple expansion and contraction, multi-tenancy and other advantages. However, the existing SDN-based SFC technology has the following problems: After NSH encapsulation of the original message in SFC, the header of the original message (including the DSCP field) is encapsulated into the inner payload, and the intermediate node directly based on For forwarding by the tunnel header, it will not read the header content of the original pac...

Claims

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Application Information

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IPC IPC(8): H04L12/851
CPCH04L47/24H04L47/2425H04L47/2441H04L2212/00
Inventor 扶奉超王鹏毛宇高小兵黄湧梅张爱华林国强
Owner CHINA TELECOM CORP LTD
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